CN106546854A - A kind of combining unit for supporting to record wave energy - Google Patents
A kind of combining unit for supporting to record wave energy Download PDFInfo
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- CN106546854A CN106546854A CN201610959768.0A CN201610959768A CN106546854A CN 106546854 A CN106546854 A CN 106546854A CN 201610959768 A CN201610959768 A CN 201610959768A CN 106546854 A CN106546854 A CN 106546854A
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- record
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of combining unit for supporting to record wave energy, the combining unit of the support record wave energy includes recording ripple record starting module, logging modle and recorded wave file memorizer, the record ripple records starting module for the situation of change and protection supervisory equipment of the current and voltage signals gathered according to combining unit, the signal that intelligent terminal sends judges whether the record ripple writing function for starting combining unit, on-off model of the logging modle for the voltage x current data and combining unit of the record combining unit collection after record ripple record is started, the recorded wave file memorizer is for the voltage and current signal and on-off model of record are stored.The present invention can be in the storage of the enterprising row data recorded wave file of the combining unit in source; can be used as the foundation of accident analysiss when meeting with an accidet; the correctness of relay protective scheme behavior can not only be verified; also can determine whether channel transfer has problems, while the investment of special recording wave device can also be saved.
Description
Technical field
The present invention relates to Intelligent substation merging unit, and in particular to a kind of combining unit for supporting to record wave energy.
Background technology
In intelligent substation, combining unit for routine transformer is exported analogue signal sampling after again with electronic type
The digital quantity of transformer collecting unit output is merged and is processed, and presses IEC 61850-9-2 standard handovers into ether netting index
According to or " support passage configurable extension IEC60044-8 " FT3 data, then by optical fiber output to process-level network or phase
The intelligent electronic device of pass.Combining unit is intelligent substation protection device, measure and control device, failure wave-recording, Network Analyzer, intelligence
The Data Source of the equipment such as energy kilowatt-hour meter, its quality of data decide whether the logical action behavior of protection device is correct, surveys
Whether the data of amount and ammeter are accurate etc..
When electrical network occurs trip accident, various recorder datas when we are required for collection accident to occur carry out synthesis
Analysis, so as to judge the correctness of accident action behavior.Device in intelligent substation for data record mainly has at present
Protection device, fault wave recording device and Network Analyzer, they obtain combining unit by way of directly adopting or net is adopted and send out
The SV data for coming over, obtain the analog data that itself can be processed by resampling, then carry out logical judgment or deposit
Storage.
We have seen that from here, the data that protection device, fault wave recording device and data analyzer are finally used all are
Through resampling itself, it is not initial data that combining unit sends, also, data is also possible to during transmission
Because the reason for channel quality, is distorted so that data analysis set-up produces the behavior of mistake.Therefore, existing failure record
Ripple mode can not accurately analyze failure cause.
The content of the invention
The invention provides a kind of combining unit for supporting to record wave energy, to solve existing fault wave recording device record
Recorder data cannot accurate analyzing failure cause problem.
To solve the above problems, the combining unit of the support record wave energy of the present invention includes recording ripple record starting module, note
Record module and recorded wave file memorizer, the record ripple record starting module for the current and voltage signals gathered according to combining unit
Situation of change and the signal that sends of protection supervisory equipment, intelligent terminal judge whether to start the record ripple record work(of combining unit
Can, the logging modle is for the voltage x current data and combining unit of the record combining unit collection after record ripple record is started
On-off model, the recorded wave file memorizer is for the voltage and current signal and on-off model of record are stored.
The inside criterion that record ripple writing function starts is：It is each mutually and residual voltage Sudden Changing Rate more than preset value, voltage out-of-limit,
Main transformer neutral point electric current exceedes setting ratio, frequency out-of-limit and the frequency change rate of secondary current rated value and exceedes setting
Value, or the same line current variable quantity of circuit exceedes setting ratio in the setting time section.
The outside criterion that record ripple writing function starts is：Protection device sends protection and starts or trip protection signal, intelligence
Terminal sends trip protection order, and measure and control device sends remote control tripping operation or remote control enabling signal, or combining unit configuration tool is sent out
Go out enabling signal.
Recorded wave file memorizer preserves the Wave data of 4 cycles before each moment in real time, when Wave data to be preserved
When file exceedes setting number, circulation covers old wave file.
If new record ripple is received in record ripple recording process starts order, combining unit restarts to record ripple.
At the end of record wave process, if not receiving new record ripple starts order, record ripple recording process terminates.
When positive sequence voltage continues phase voltages of the 3s less than 90%, record ripple recording process terminates.
Recorded wave file storage when press operating time of protection sequencing sort, the recorded wave file include starting time,
Analog quantity information and switching value information before and after action message, failure.
The naming rule of recorded wave file is：IED names _ logical device name _ failure sequence number _ fault time _ s/_f, wherein, s tables
Show startup, f represents failure.
Beneficial effects of the present invention：The combining unit of the present invention has the function of record ripple record, and can be to collecting
Voltage x current data are analyzed, and whether monitor in real time measuring and controlling protective device and intelligent terminal issue trip signal, so as to
Judge whether to start record ripple writing function, after record ripple writing function is started, combining unit preserves all voltage x current numbers in real time
According to and on-off model, the recorder data stored when meeting with an accidet be able to can not only be verified as the foundation of accident analysiss
The correctness of relay protective scheme behavior, it is also possible to determine whether channel transfer has problems, while special record can also be saved
The investment of wave device.
Description of the drawings
Fig. 1 is a kind of analog quantity sampling periods precedence diagram of the combining unit for supporting to record wave energy of the present invention；
Fig. 2 is 220kV circuits combining unit internal switch amount signal exemplary plot of the present invention；
Fig. 3 starts recorded wave file and failure wave-recording file example figure for the present invention；
Fig. 4 is criterion (220kV circuit observing and controlling, protection, intelligent terminal) exemplary plot outside startup separator of the present invention record ripple；
Fig. 5 is that 220kV circuits combining unit of the present invention receives outside start-up criterion void terminal exemplary plot.
Specific embodiment
Below in conjunction with the accompanying drawings, technical scheme is further described in detail.
The combining unit of the support record wave energy of the present embodiment includes recording ripple record starting module, logging modle and record ripple text
Part memorizer, record ripple record starting module for the situation of change of current and voltage signals that gathered according to combining unit and
The signal sent by protection supervisory equipment, intelligent terminal for receiving judges whether the record ripple writing function for starting combining unit,
The logging modle is opened for the voltage x current data and combining unit of the record combining unit collection after record ripple record is started
Signal is measured in pass, and the recorded wave file memorizer is for the voltage and current signal and on-off model of record are stored.
Elaborate the course of work of each ingredient of combining unit below by taking 220kV circuit combining units as an example.
In view of the restriction of combining unit memory span, according to DL/T 553-94220～500kV electric power system faults
The recorded wave file of dynamically recording technical criteria and the protection device with reference to current main flow, 4 before each wave file record failure
The analog data of 6 cycles after individual cycle and failure.As shown in figure 1, the S moment is record ripple collection start time, the A periods are event
Hinder front 4 cycles collection, the B periods are 6 cycle data acquisitions after failure.
Combining unit need to preserve the Wave data of 4 cycles before each moment in real time, it is contemplated that the 4000 points/second of combining unit
Sampling rate, each moment need preserve the moment before each 320 point of analog quantity channel data volume.
Combining unit needs the Wave data file for preserving reach at least 50, you can the full mistake of at least 50 times failures of record
Cheng Suoyou voltage current waveforms, so that fault waveform is played back and simulation analysis, when the wave file of storage is more than 50, circulation
Cover wave file in front.Combining unit Wave data file to be preserved number to be reached and combining unit memory capacity
Relevant, combining unit that can be according to selected by reality is determined.
For each wave file, in addition to recording all voltage x current data, also need to record the switching value of combining unit
Signal, mainly warning signal, as accident at that time combining unit working condition itself analysis judge.It is illustrated in figure 2
220kV circuit combining unit internal switch amount signal examples.
According to GB/T 22386-2008 electrical power system transient data interchange general formats, build on combining unit memorizer
Vertical comtrade files, for depositing recorded wave file；For each comtrade is recorded, there are 4 relative files,
Header files (.hdr) for providing the user the description sample of an accessory information, using ASCII fromat；Configuration file
(.cfg) for explaining the information needed for data file (.dat), the entry that the packet contains has sampling rate, port number, electrical network
Frequency, channel information etc., usually ASCII fromat；Data file (.dat) containing transient state record in each sampling it is each defeated
Enter the value of passage, can be ASCII fromat or binary format, specifically be determined by configuration in configuration file；Message file
(.inf) it is optional file, comprising some extraneous informations.
According to the relay protection information specification that State Grid Corporation of China is newest, recorded wave file naming rule is：" IED names _ logic
Implementor name _ failure sequence number _ fault time _ s (represent and start)/_ f (expression failure) ", recorded wave file presses operating time of protection successively
Order is arranged, and recorded wave file includes analog quantity information and switching value information before and after starting time, action message, failure etc., its
Middle analog quantity information is containing the voltage and current amount for accessing.It is illustrated in figure 3 startup recorded wave file and failure wave-recording file example.
Combining unit is not all to carry out at any time recording ripple recording process, but is just started after certain condition is met
Record ripple writing function.The criterion for starting record ripple record is divided into internal self-starting criterion and outside start-up criterion.Wherein, it is internal to open certainly
Dynamic criterion includes：
1st, each phase and residual voltage Sudden Changing Rate：The Sudden Changing Rate of each phase voltage and residual voltage be more than preset value, such as Δ Uf >=
5%UN；Δ U0 >=2%UN；Here the Sudden Changing Rate preset value of phase voltage takes 5%UN, and the Sudden Changing Rate preset value of residual voltage takes 2%
UN, can flexibly select according to practical situation as the Sudden Changing Rate preset value of other embodiment, each phase voltage and residual voltage, this
In no longer elaborate, following judgement 2-5 are in the same manner.
2nd, voltage out-of-limit：110%UN≤U1≤90%UN；U2 >=3%UN；U0 >=2%UN；
3rd, main transformer neutral point electric current：3I0 >=10%IN；
4th, frequency out-of-limit and rate of change：50.5Hz≤f≤49.5Hz；df/dt≥0.1Hz/s；
5th, the same phase current change of circuit：Difference >=10% of maxima and minima in 0.5s.
Above-mentioned Δ Uf is phase voltage Sudden Changing Rate, and Δ U0 is residual voltage Sudden Changing Rate, and UN is phase voltage 100/1.732V, and U1 is
Positive sequence voltage, U2 are negative sequence voltage, and U0 is residual voltage, and 3I0 is neutral point current, and IN is that secondary rated value 1A or 5A, f are frequency
Rate, df/dt are frequency change rate.
Outside start-up criterion includes：
1st, protection device sends protection startup, trip protection signal；
2nd, the trip protection signal that intelligent terminal sends；
3rd, measure and control device sends remote control tripping operation or remote control enabling signal；
4th, the enabling signal that combining unit configuration tool sends.
It is illustrated in figure 4 criterion (220kV circuit observing and controlling, protection, intelligent terminal) example outside startup separator record ripple, Fig. 5
Outside start-up criterion void terminal example is received for 220kV circuits combining unit.
Entry condition：Any bar in above-mentioned inside self-starting criterion and outside start-up criterion is met, then start record ripple；
If record wave process in receive start-up criterion again, from newly start record wave process.
End condition：Terminate when this record wave process terminates and do not receive startup record ripple criterion again；Need to consider a kind of
Special circumstances are exactly：When positive sequence voltage continues phase voltages of the 3s less than 90%, record ripple recording process terminates.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in teaching of the invention
The model of shape, formula, parameter simultaneously need not spend creative work.It is right without departing from the principles and spirit of the present invention
Change, modification, replacement and the modification that embodiment is carried out is still fallen within protection scope of the present invention.
Claims (9)
1. a kind of combining unit for supporting to record wave energy, it is characterised in that the combining unit of support record wave energy includes recording ripple
Record starting module, logging modle and recorded wave file memorizer, the record ripple record starting module for adopting according to combining unit
The signal that the situation of change and protection supervisory equipment of the current and voltage signals of collection, intelligent terminal send judges whether to start merging
The record ripple writing function of unit, voltage x current of the logging modle for the record combining unit collection after record ripple record is started
The on-off model of data and combining unit, the recorded wave file memorizer for will record voltage and current signal and switching value
Signal is stored.
2. the combining unit of record wave energy is supported according to claim 1, it is characterised in that it is interior that record ripple writing function starts
Portion's criterion is：It is each to be mutually more than preset value, voltage out-of-limit, main transformer neutral point electric current and exceed secondary electricity with residual voltage Sudden Changing Rate
The stream setting ratio of rated value, frequency out-of-limit and frequency change rate exceed setting value or the same line of circuit in the setting time section
Current change quantity exceedes setting ratio.
3. the combining unit of record wave energy is supported according to claim 1, it is characterised in that it is outer that record ripple writing function starts
Portion's criterion is：Protection device sends protection and starts or trip protection signal, and intelligent terminal sends trip protection order, measure and control device
Remote control tripping operation or remote control enabling signal are sent, or combining unit configuration tool sends enabling signal.
4. the combining unit of record wave energy is supported according to claim 1, it is characterised in that recorded wave file memorizer is protected in real time
The Wave data of 4 cycles before each moment is deposited, when Wave data file to be preserved exceedes setting number, circulation covers old
Wave file.
5. the combining unit of record wave energy is supported according to claim 1, it is characterised in that if receiving in record ripple recording process
New record ripple starts order, then combining unit restarts to record ripple.
6. the combining unit of record wave energy is supported according to claim 1, it is characterised in that at the end of record wave process, if
Do not receive new record ripple and start order, record ripple recording process terminates.
7. the combining unit of record wave energy is supported according to claim 1, it is characterised in that be less than when positive sequence voltage continues 3s
90% phase voltage, record ripple recording process terminate.
8. the combining unit of record wave energy is supported according to claim 1, it is characterised in that recorded wave file is in storage by guarantor
Shield sequencing movement time sequence, the recorded wave file include the analog quantity letter before and after starting time, action message, failure
Breath and switching value information.
9. the combining unit of record wave energy is supported according to claim 8, it is characterised in that the naming rule of recorded wave file
For：IED names _ logical device name _ failure sequence number _ fault time _ s/_f, wherein, s represents startup, and f represents failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959768.0A CN106546854A (en) | 2016-10-27 | 2016-10-27 | A kind of combining unit for supporting to record wave energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959768.0A CN106546854A (en) | 2016-10-27 | 2016-10-27 | A kind of combining unit for supporting to record wave energy |
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| CN106546854A true CN106546854A (en) | 2017-03-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441657A (en) * | 2019-08-22 | 2019-11-12 | 深圳华工能源技术有限公司 | Distribution system failure wave-recording method, apparatus and storage medium |
| CN111812433A (en) * | 2020-06-24 | 2020-10-23 | 清科优能(深圳)技术有限公司 | Safety event wave recording method, equipment and system |
| CN112834864A (en) * | 2020-12-28 | 2021-05-25 | 深圳供电局有限公司 | Waveform acquisition method and device, waveform acquisition equipment and storage medium |
| CN113075502A (en) * | 2021-03-29 | 2021-07-06 | 深圳供电局有限公司 | Fault oscillograph |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441657A (en) * | 2019-08-22 | 2019-11-12 | 深圳华工能源技术有限公司 | Distribution system failure wave-recording method, apparatus and storage medium |
| CN111812433A (en) * | 2020-06-24 | 2020-10-23 | 清科优能(深圳)技术有限公司 | Safety event wave recording method, equipment and system |
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| CN112834864A (en) * | 2020-12-28 | 2021-05-25 | 深圳供电局有限公司 | Waveform acquisition method and device, waveform acquisition equipment and storage medium |
| CN113075502A (en) * | 2021-03-29 | 2021-07-06 | 深圳供电局有限公司 | Fault oscillograph |
| CN113075502B (en) * | 2021-03-29 | 2024-02-23 | 深圳供电局有限公司 | Fault recorder |
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Application publication date: 20170329 |